P78D6

P78D6 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

P78D6 Diagnosis

The axle lift 2 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for axle lift 2 air solenoid fault, and for air pressure switch short circuit fault.The ICU reads the wiper switch position and sends the status of the switch to the BHM. This fault becomes active when the ICU reads that both LO speed and HI speed are active at the same time.

The BHM measures the current on this circuit when the headlamp output is commanded ON. This fault indicates that the left high beam headlamp circuit is drawing more current than it is designed to supply and possibly there is a wiring fault shorting this circuit to ground.

Ford P78D6 Fault Code Meaning :

Ford P78D6 Symptoms :

Ford P78D6 Reasons :

How To Fix Ford P78D6 Trouble Code ?

Which Ford cars have the code P78D6?

  • P78D6 Ford Aerostar
  • P78D6 Ford Bronco
  • P78D6 Ford C-Max
  • P78D6 Ford C-Max Energi
  • P78D6 Ford C-Max Hybrid
  • P78D6 Ford Contour
  • P78D6 Ford Crown Victoria
  • P78D6 Ford EcoSport
  • P78D6 Ford Econoline
  • P78D6 Ford Edge
  • P78D6 Ford Escape
  • P78D6 Ford Escape Hybrid
  • P78D6 Ford Escort
  • P78D6 Ford Everest
  • P78D6 Ford Excursion
  • P78D6 Ford Expedition
  • P78D6 Ford Explorer
  • P78D6 Ford Explorer Sport Trac
  • P78D6 Ford F-150
  • P78D6 Ford F-250
  • P78D6 Ford F-350
  • P78D6 Ford Fiesta
  • P78D6 Ford Flex
  • P78D6 Ford Focus
  • P78D6 Ford Focus Electric
  • P78D6 Ford Freestar
  • P78D6 Ford Freestyle
  • P78D6 Ford Fusion
  • P78D6 Ford Fusion Energi
  • P78D6 Ford Fusion Hybrid
  • P78D6 Ford Fusion Plug-In Hybrid
  • P78D6 Ford GT
  • P78D6 Ford Mustang
  • P78D6 Ford Mustang Mach-E
  • P78D6 Ford Mystique
  • P78D6 Ford Probe
  • P78D6 Ford Ranger
  • P78D6 Ford Taurus
  • P78D6 Ford Taurus X
  • P78D6 Ford Tempo
  • P78D6 Ford Thunderbird
  • P78D6 Ford Transit
  • P78D6 Ford Transit Connect
  • P78D6 Ford Windstar

A code is a fault code and it indicates that something has gone wrong with your car's engine.

It can be caused by many different problems, including a faulty battery, a bad fuel pump, or even a cracked exhaust manifold.

You will need to diagnose the problem before you can fix it. The best way to do this is with an OBD scanner tool.

A scan tool will tell you what needs fixing and how much it will cost in order to fix that particular issue.